New to pool ownership as of about 2 years ago. Last summer I built a very quick DIY pool heater and decided this year that I would build a new one to make it look a little nicer. I have an intex above ground pool and live in central Alberta where we don't have an ideal pool season so I wasn't looking to spend a ton of money. I thought I would share my pictures in hopes it would help someone else that was in the same boat as me. The project cost about 260 Canadian (210 USD) and I spent an evening and half of Saturday on it.
The proof is in the numbers though, it's early in the season here with our days being about 77 F and our evenings as low as 48 F.
The pool was 69 on Saturday when I hooked it up and after two average days it is up 5 degrees to 74. I'm quite happy with that return.
I started by sandwiching a 4 by 8 sheet of metal backed styrofoam insulation between a 4 by 8 sheet of particle board, and a frame I built out of 2 by 2s. Then painted it black to maximize the heat.
I then coiled 200 feet of black poly tubing into each side of the box I built. It was a bit difficult at the end, I definitely recommend having a buddy and some cold beers on hand.
Next came the cover. I chose to use a corrugated plastic like they use greenhouse. Hopefully it won't yellow too much.
We lifted it onto the roof Saturday morning, and added strapping underneath so it wouldn't collect water against the shingles.
Then it was a bit of plumbing to get the pump to push the water onto the roof. I first used a dishwasher Y but couldn't get enough pressure.
I had to step down my pump from the 1 1/2 abs I had run so it would pump on the new line too. Flow is still adequate and the pump is running about 10 psi.
I put in a clear return line so I could monitor flow.
If you have any questions feel free to let me know.
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